Integrated liquid cooling system for electrical components

Abstract

A liquid cooling system includes a cooling body ( 10 ), and a liquid circulation module ( 20 ). The cooling body comprises a cooling base ( 11 ) for thermally contacting a heat source, and a heat sink ( 14 ) mounted on the cooling base. An internal flow path is defined in the cooling body, for heat exchange with coolant. At least two passages ( 15 ) are formed through the heat sink. The liquid circulation module defines a plurality of external flow paths coupled to the internal flow path of the cooling base, thereby forming a loop for circulation of the coolant. The external flow paths comprises at least two output paths extending through the at least two passages of the heat sink, and along which the coolant that exits the internal flow path passes through the heat sink for cooling.

1. A liquid cooling system comprising:
 a cooling body comprising a cooling base for thermally contacting a heat source, and a heat sink mounted on the cooling base, the cooling body defining an internal flow path for heat exchange with coolant, the heat sink forming at least two passages therethrough; and 
 a liquid circulation module defining a plurality of external flow paths coupled to said internal flow path thereby for forming a loop for circulation of the coolant, said external flow paths comprising at least two output paths extending through the at least two passages, and along which the coolant that exits said internal flow path passes through the heat sink for cooling; 
 wherein the heat sink comprises a plurality of cooling fins connected together; and 
 wherein each of the cooling fins defines a cutout therein, and the cutouts cooperatively form a groove corresponding to an outer profile of the cooling base, the cooling fins being mounted to the cooling base at the groove. 
 
   
   
     2. The liquid cooling system as described in  claim 1 , wherein the cooling base has a trapezoid cross section. 
   
   
     3. A liquid cooling system comprising:
 a cooling body comprising a cooling base for thermally contacting a heat source, and a heat sink mounted on the cooling base, the cooling body defining an internal flow path for heat exchange with coolant, the heat sink forming at least two passages therethrough; and 
 a liquid circulation module defining a plurality of external flow paths coupled to said internal flow path thereby for forming a loop for circulation of the coolant, said external flow paths comprising at least two output paths extending through the at least two passages, and along which the coolant that exits said internal flow path passes through the heat sink for cooling; 
 wherein the cooling base defines an inlet and an outlet in communication with said internal flow path, the liquid circulation module comprises a pump for driving the coolant therein, an input pipe connected between the pump and the inlet for feeding the coolant to the internal flow path, and at least two output pipes connected the pump and the outlet for guiding the coolant back to the pump. 
 
   
   
     4. The liquid cooling system as described in  claim 3 , wherein the liquid circulation module further comprises a diverging member attached at the outlet for subdividing the coolant into at least two branches. 
   
   
     5. The liquid cooling system as described in  claim 3 , wherein the liquid circulation module further comprises a converging member attached to the pump for converging the coolant at the pump. 
   
   
     6. The liquid cooling system as described in  claim 3 , further comprising a fan mounted to the heat sink. 
   
   
     7. A liquid cooling system comprising:
 a pump to which an input pipe is connected; 
 a heat sink comprising a plurality of cooling fins, and defining a passage and a groove perpendicularly extending through the cooling fins; 
 a cooling base thermally attached in the groove, the cooling base being for thermally contacting a heat source, and defining an internal flow path communicating with the input pipe at one end thereof; and 
 an output pipe communicating with the internal flow path at an opposite end thereof, extending through the passage, and connected to the pump; wherein the input pipe, the internal flow path, and the output pipe together forms a loop for circulation of coolant. 
 
   
   
     8. The liquid cooling system as described in  claim 7 , further comprising a fan mounted on the heat sink.